Smoker&#39;s pipe stem unit



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SMOKER S PIPE STEM UNIT Filed Feb. 9. 1931 IN V EN TOR,

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Patented June 7, 1932 PATENT orriee ARTEMAS S. HIGKEY, OF LOS ANG-ELES,CALIFORNIA SMOKERS PIPE STEM UNIT Application filed February 9, 1981.Serial No.'514,542.

This invention relates to smokers pipes and more especially to the stemstructures.

It is an object of the present invention to provide a stem unit of suchconstruction and arrangement of parts as to serve as a cooler for thesmoke stream passing from the hot bowl to the mouth piece. A furtherobject is to provide a smoke cooling stem which divides the stream intoa number of short straight passageways which may be quickly andeffectively cleaned from time to time and in this connection an objectis to provide for the reduction of the smoke stream to a stream ofrelatively small cross section area to facilitate the transfer of itsheat, and in this connection an object is to provide an aggregate lengthof reduced area ot a smoke stream which will be suihcient to provide forthe cooling of the smoke to the desired degree.

For the accomplishment of this result and to obtain a sanitary stem unitthe cooling means consists of a plurality of tubular conduits whose endsare set in headers one of which is adjacent to the bowl passage whilethe other is adjacent to the mouth piece of the stem.

The invention consists in certain advancements in this art as set forthin the ensuing disclosure and having, with the above, additional objectsand advantages, and whose construction, combination and details ofmeans,

and the manner of operation will be made manifest in the description ofthe herewith illustrative embodiment; it being understood thatmodifications, variations and adaptations may be resorted to within thescope,

principle and spirit of the invention as it is more directly claimedhereinafter.

Fig. 1 is a side elevation of a pipe incorporating the cooling unit.

Figure 2 is an axial section of the cooling unit and a relative salivascreen.

Figure 3 is an end view of the cooling unit.

Figure 4 is a sectional view showing the method of crimping in a tubingheader.

The cooling unit inludes an exterior tubular shell 2 of suitablediameter and length and the lower end of it is attached in any suitablemanner to the bottom of the pipe bowl 3. The upper end of the shell tubeis attached in any suitable manner to the mouth piece 4:

and the shell 2 is provided with suitable perforations 5 for the freepassage of air to and from its interior. 7 7

Set somewhat inwardly from each end of the jacket 2 are headers 6 sothat there is formed an upperof saliva screen chamber 7 for asuitableabsorbentscreen 8 and at the lower end is formed the smoke drawingchamber 9. Extending from header to head erand hermetically sealedtherein is a system of small tubular conduits 10 .whose lower ends openinto the bottom chamber 9 and whose upper ends open into the screenchamber 8. The conduits 10 are sufficiently spaced to provide for readyflow of air into and from and throughout the space between the headers6; this circulation being very active when the pipe is being used andwhen, because of suction in the chamber 7 at the mouth piece, the hotsmoke, pressed by atmospheric pressure to the chamber 9, is divided intoa number of small streams passing into the spaced conduits 10. Becauseof such division of the smoke volume from chamber 9 into the conduits 10the heat is rapidly dissipated at the initial ends of the conduits andby the time the smoke is at the suction chamber 7 the smoke has beenreduced to such temperature that it will not bite or sting the tongue.

While the cooling effect is the same as if ous passageway equaling theaggregate 7 length of the conduits 10 the present device has the greateradvantage because the system of conduits forms a short unit of pluralityof straight passageways which can be quickly and thoroughly cleaned whenneeded, after removing the unit from the mouthpiece and bowl.

When the packing screen 8 is in place it serves to prevent the salivafrom passing down into the stem parts.

An effective method of fixing the headers 6 in the shell 2 is shown inFigure 4. The header is about equal to the internal diameter of theshell and when these parts are assembled to the desired position then acrimping roller 11 may be employed to roll a clinching bead 12 about theheader 6 so as to effectively hold the header and make a leak-proofcontact thereabout so that no smoke will pass into the air chamberbetween the headers.

As there is much moisture from even so called dry smoking tobacco thiscondensed liquid drains from the cooling unit to a capacious pocket inthe bottom of the bowl, which is provided with a readily removable packof absorbent material which catches the condensed moisture. Sucha packis clearly shown in my application No. 483,614.

What is claimed is:

1. A stem unit for a smokers pipe, consisting of a shell with ends towhich are attachable a mouth piece and a bowl, a set ofsealing headersin the shell and spaced inwardly from its ends to form chambers forabsorbent pads, and a system of straight, parallel, spaced conduitswhose ends are sealed in the headers and open into the said endchambers; said shell being perforated for free flow of air to the spacebetween the system of conduits to carry ofi heat from the smoke.

2. A device as set forth in claim 1, and in which one end of the shellhas a conical plug part to fit a pipe bowl stem socket, and the otherend has a conical end seal for the stem mouth piece.

ARTEMAS S. HICKEY.

